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3 years ago

A decorator wants to line the bottom of 3 drawers with paper. If the bottom of each drawer measures 36 inches by 20 inches,

Mathematics

2 answers:

prisoha [69]3 years ago

6 0

Answer:

2160

Step-by-step explanation:

36*20=720 720*3=2160

kvasek [131]3 years ago

3 0

Answer: D 2,160

Step-by-step explanation:

Given : The bottom of each drawer measures 36 inches by 20 inches.

Then area of bottom of each drawer is given :-

$\text{Area}=36\times20=720\ \text{ square inches}$

Now, the area for 3 drawers will be :-

$\text{Area}=3\times720=2160\text{ square inches}$

Hence, the area of paper needed = 2160 square inches

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You travel 300 km in a Sierra GMC 4WD truck. Gas costs $1.01/L. The gas mileage

rusak2 [61]

Part A)

The mileage for city use is 16.81 L per 100 km. In other words, if you traveled 100 km in the city, then you use up 16.81 liters of gas.

We can set up this equation

16.81 liters = 100 km

Multiply both sides by 3 so that the "100 km" turns into "300 km"

16.81 liters = 100 km

3*16.81 liters = 3*100 km

50.43 liters = 300 km

<h3>Answer: 50.43 liters</h3>

==================================

Part B)

Multiply the answer in part A by the cost per liter, which is $1.01

Total cost = (cost per liter)*(number of liters)

Total cost = (1.01)*(50.43)

Total cost = 50.9343

Total cost = 50.93

<h3>Answer: 50.93 dollars</h3>

==================================

Part C)

We're effectively repeating part A, but now we're using the highway mileage value.

11.8 liters = 100 km

3*11.8 liters = 3*100 km

35.4 liters = 300 km

<h3>Answer: 35.4 liters</h3>

==================================

Part D)

We follow similar steps as we did in part B. Use the value in part C to get

Total cost = (cost per liter)*(number of liters)

Total cost = (1.01)*(35.4)

Total cost = 35.754

Total cost = 35.75

<h3>Answer: 35.75 dollars</h3>

==================================

Part E)

Subtract the results of parts B and D

50.93 - 35.75 = 15.18

<h3>Answer: 15.18 dollars</h3>

4 0

3 years ago

A jewelry box is shaped like a cube each edge of the jewelry box measures 8 inches what is the volume of the jewelry box ?

tensa zangetsu [6.8K]

Answer:

512

Step-by-step explanation:

the formula is V=x to the 3rd power

7 0

3 years ago

Read 2 more answers

From a population with standard deviation 25, a sample of size 100 is drawn. The mean of the sample is 235. Construct a 90% conf

pickupchik [31]

Answer:

See explaination and attachment

Step-by-step explanation:

Given the parameters we have, we want to Construct a 90% confidence interval for the true mean of the population.

Hence, making use of these parameters;

sample size =100

Std deviation =25

mean if the sample=253.

Therefore solving for 90% confidence interval for the true mean of the population. We will apply a formula.

Please kindly check attachment gor the step by step solution for all the questions.

6 0

3 years ago

A student walks a distance of 3km in 20minutes. calculate his average speed

NNADVOKAT [17]

Answer:

9 Km/h

Step-by-step explanation:

Walking 3 Km for 20 minutes from the definition of speed, it's distance covered per unit time. Here, the distance covered is expressed per unit hour.

$Speed=\frac {distance}{time}$

Substituting 3.5 Km for distance and time for 20 minutes

To convert time into hours, we divide the minutes by 60 hence time=20/60=1/3 hours

$Speed=\frac {3 Km}{1/3 hours}=9 Km/h$

Therefore, the speed is 9 Km/h

4 0

3 years ago

A 20 foot ladder leaning against a wall is used to reach a window that is 17 feet above the ground. How far from the wall is the

GarryVolchara [31]

The bottom of the ladder is 10.5 feet away from the wall

Step-by-step explanation:

The given scenario forms a right triangle.

Where

The length of ladder will be the hypotenuse

The wall on which the window is situated will ebt he perpendicular and

The distance between the foot of ladder and the wall will be the base

So,

Hypotenuse = H = 20 foot

Perpendicular = P = 17 feet

Base = B = ?

Using the Pythagoras theorem

$H^2=P^2+B^2\\(20)^2=(17)^2+B^2\\400=289+B^2\\400-289=B^2\\B^2=111\\Taking\ square\ root\ on\ both\ sides\\\sqrt{B^2}=\sqrt{111}\\B=10.53\\Rounding\ off\ to\ the\ nearest\ tenth\\B=10.5$

The bottom of the ladder is 10.5 feet away from the wall

Keywords: Triangle, Pythagoras Theorem

Learn more about Pythagoras theorem at:

#LearnwithBrainly

8 0

3 years ago